{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x59e33f660fe3b859e2af4053a68f39f7be1214e06710cbd1b7ef85b88f73bb58",
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  }
}